<pre>Modifier:

<?php

    // Enable modifer?
    //enable_modifier( );

    // System settings modifier.
    function enable_modifier ( )
    {
        // Get settings.
        $settings = m_data( "System" );

        // Change settings.
        $settings['system'] []= "Template.php";

        // Save settings.
        $settings = m_data( "System", $settings );
    }

?>
</pre>